Mantrap is the 1120th episode of The Bill.
P.C. Quinnan and W.P.C. Blake go to the scene where a teenage boy has been found dead from a massive electric shock in the flat of one of his neighbours. Quinnan knows the boy as he has arrested him before for burglary. They talk to the tenant who tells them that he came home to find his flat broken into and the boy dead. At first it looks like an accident, until Quinnan discovers a secret about the tenant and Sgt. Ackland finds out that the victim's older brother may know more than he is letting on.
- Kristy Bruce, Martin Freeman and David Spinx guest star as Kayleigh Reed, Craig Parnell and James Parnell in this episode.
- This is one of a number of episodes referring to P.C. Quinnan's previous career as an electrician.